3D Imaging: Wave Front Sensing Utilizing a Birefringent Crystal

K. Buse and M. Luennemann
Phys. Rev. Lett. 85, 3385 – Published 16 October 2000
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Abstract

Utilizing a rotatable thin birefringent crystal and two polarizers, the three-dimensional (3D) wave front of any light wave can be measured conveniently. In first experiments phase-front distortions as small as 15μm are detected with a dynamic range of 3 mm and a spatial resolution of 50μm. Such a dynamic range and spatial resolution exceed the performance of conventional wave front sensors of, e.g., the Shack-Hartmann type, significantly. Furthermore, the new system is rather insensitive against mechanical instabilities in opposition to interferometric and holographic techniques.

  • Received 28 March 2000

DOI:https://doi.org/10.1103/PhysRevLett.85.3385

©2000 American Physical Society

Authors & Affiliations

K. Buse and M. Luennemann

  • University of Osnabrück, Physics Department, D-49069 Osnabrück, Germany

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Vol. 85, Iss. 16 — 16 October 2000

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